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https://issues.apache.org/jira/browse/HDFS-9243?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14969152#comment-14969152
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Wei-Chiu Chuang commented on HDFS-9243:
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De-assign myself because I am not able to work on this right now. But this 
failure occurred again in today's jenkins build 
https://builds.apache.org/job/Hadoop-Hdfs-trunk/2453/changes

> TestUnderReplicatedBlocks#testSetrepIncWithUnderReplicatedBlocks test timeout
> -----------------------------------------------------------------------------
>
>                 Key: HDFS-9243
>                 URL: https://issues.apache.org/jira/browse/HDFS-9243
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: HDFS
>            Reporter: Wei-Chiu Chuang
>            Priority: Minor
>
> org.apache.hadoop.hdfs.server.blockmanagement.TestUnderReplicatedBlocks 
> sometimes time out.
> This is happening on trunk as can be observed in several recent jenkins job. 
> (e.g. https://builds.apache.org/job/Hadoop-Hdfs-trunk/2423/  
> https://builds.apache.org/job/Hadoop-Hdfs-trunk/2386/ 
> https://builds.apache.org/job/Hadoop-Hdfs-trunk/2351/ 
> https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/472/
> On my local Linux machine, this test case times out 6 out of 10 times. When 
> it does not time out, this test takes about 20 seconds, otherwise it takes 
> more than 60 seconds and then time out.
> I suspect it's a deadlock issue, as dead lock had occurred at this test case 
> in HDFS-5527 before.



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